Electronics Forum | Wed Sep 18 10:06:30 EDT 2002 | Bob M
I place 15-20 mil a lot. You need to look at your pad to apature reduction. Your stencil thickness. The type of paste your using. We use 2-5 mil reduction on each side as a general rule on fine pitch. This varies depending on pad width. We also use 5
Electronics Forum | Thu Nov 14 11:08:29 EST 2002 | bcceng
Kevin, I have done the following process to a similar problem: 1. Plug holes (even to both sides of the board) 2. Clean any flux left on the surface, especially on bottom side. 3. Apply Kapton tape to the bottom side, you mite want to apply 3 layers
Electronics Forum | Wed May 12 08:16:33 EDT 2004 | solderpro
woow, slow down hot rod, hey davef, you are alright by me, good to see some one out there that has hands on experience rather than a theory nut.... any how, you need a top of the line profiler, super gold mole, or Kic.... these truly are the best and
Electronics Forum | Tue Jan 03 16:23:37 EST 2006 | Phil
Our past experience with Frost and Sullivan is that they derive most of their data from interviews with the subject companies and press releases. That puts them a half a notch above asking the sales reps for info (except with F&S, the total won't be
Electronics Forum | Mon Nov 06 22:01:44 EST 2006 | realchunks
Why a clean room? Or do you mean an environmental room to control temp and RH? Any way, to answer you question, your wave and oven can care less about RH. Just don't keep them at 100% RH. Static can easily be handled with lower RH and proper grou
Electronics Forum | Thu Dec 07 19:20:28 EST 2006 | ganoi
Most likely there is movement during reflow. How about conduction oven over convection oven for reflow? This is a small PCB with the LED sitting on a Flex-Rigid extension from the PCB. I was thinking if the stencil aperature for the LED was to be cu
Electronics Forum | Wed Dec 19 18:41:33 EST 2007 | darby
You printer is not solely designed for printing solder paste. This is why some of the options you would never use for paste appear in the menu. You may actually be printing overlays or yes, even t-shirts. This is why you may want to flood/print, prin
Electronics Forum | Thu May 17 16:09:50 EDT 2018 | raylawre
Thanks for the feedback, We don't use DEK or AIM, I saw DEK has black or white spatulas, didn't see green, and it seems like only from places out of UK. I've gotten the 1" wide green rounded ones from AIM in the past (including logo), but since I don
Electronics Forum | Mon Apr 07 15:22:17 EDT 2014 | garym4569
Found the issue. The footprint is incorrect. The inductor completely shields the paste from heat. Slid the inductor on the pad to expose the pad and paste, and perfect solder joint. This part was a last minute design change with a larger body.
Electronics Forum | Tue Dec 07 07:59:36 EST 2021 | jineshjpr
Hi Evtimov, Thanks for your response - Coverage of Paste on the pad is 85 % (By considering window & outer area), Let me revert back after PAD design vs Recommendation verification.
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